This is the entirety of the 1843 London Post office directory, as it is added.
Walker Abraham & Co. drapers, army clothiers, &c. 346 Strand
Walker Brothers & Co. merchants, 14 South street, Finsbury
Walker & Burges, civil engineers, 23 Great George street, Westminster
Walker & Coulthurst, attorneys, 13 New inn, Wych street, Strand
Walker George F. & Co. sawmills, College wharf, Belvedere road, Lambeth
Walker George & Son, anchorsmiths, 165 & 166 Wapping
Walker George & Son, publishers of music, 17 Soho square
Walker George & Son, sailmakers & ship chandlers, 222 Wapping
Walker & Grant, solicitors, 13 King's road, Bedford row
Walker John & Charles, geographers & engravers, 9 Castle street, Holborn
Walker & Knowles, sheffield ware. 7 Beaufort buildings, Strand
Walker & Ottley, surgeons, 38 Hart street, Bloomsbury
Walker Richard & Son, patent corrugated iron factory, Upper Fort place, Grange
road, Bermondsey
Walker Stephen S. Sam. & Co. printer's joiners, 45 Little Bartholomew close
Walker Thomas & Co. grocers, cc. 44 Hedge row, High street, Islington
Walker & Lee, linendrapers, 165 Oxford street
Walker & White, builders & patentees of the universal water elevator & air proof
water closets, 1 Crooked lane City
Walker & Knight, wood engravers, 10 Guildford place, Spa fields
Walker's, Parker & Co. lead merchant, shot & white lead makers, Lambeth
leadworks, Belvedere road, Lambeth & 27 Abchurch lane
Walker Adam Lawson, grocer, 4 & 5 Union place, Clapham rise
Walker Alexander, druggist, 10 Ireland row, Mile end road
Walker Ann (Mrs.), milliner, 33 Pall mall
Walker Ann (Mrs.), butcher, 43 Barbican
Walker Arthur, solicitor, 18 King's road, Bedford row
Walker Benjamin, cattle salesman, 17 West Smithfield
Walker Benjamin, stationer, 191 Hoxton Old town
Walker Benjamin Ed. Goat & Compasses
, 8 Upper Fitzroy street, Fitzroy square
Walker Caleb, grocer, &c. 12 Spring street, Paddington
Walker Catherine (Mrs.), scale maker, 19 Wych street, Strand
Walker Cecil (Mrs.), artificial florist, 93 Oxford street
Walker Charles, ironfounder, 21 Little Sutton street, Clerkenwell
Walker Charles, saddler, &c. 23 King street, Golden square
Walker Charles, solicitor, 5 New inn, Wych street, Strand
Walker Charles, tailor, &c. 38 Sackville street, Piccadilly
Walker Charles, tobacconist, 67 Whitechapel road
Walker Charles Edmund, teadealer, 102 London road, Sonthwark
Walker Charles Page, reel cotton manufacturer, 8 Draycott place, Chelsea
Walker Charlotte (Mrs.) tobacconist, 83 Long lane, Smithfield
Walker Edward, auctioneer, &c. 79 Newman street, Oxford street
Walker Edward, Bulls Head , Newmarket street, Wapping
Walker Edward, Queens Head , 50 Theobalds road, Bloomsbury
Walker Edward, solicitor, see Lake & Walker
Walker Edward, watch tool maker, 55 Red lion street, Clerkenwell
Walker Elizabeth (Mrs.), Anchor
, 24 Market row, Oxford market
Walker Elizabeth (Mrs.), dress maker, 3 Newcastle street, Strand
Walker Francis, optician, 35 Wapping wall
Walker Francis, teadealer, 4 Upper Southampton street, Pentonville
Walker Frederick, watchmaker, see Card & Walker
Walker George, chaser, 17 Albermarle street, Clerkenwell
Walker George, chemist, &c. Mile end road
Walker George, dairyman, 42 Charles street, Hampstead road
Walker George, egg merchant, 31 Grange walk, Bermondsey
Walker George, tailor, 60 King street, Soho
Walker George, tailor, 33 St. James's street, Pall mall
Walker Geo. tinplate & iron merchant, 5 Pinners' hall, Great Winchester street
Walker George Alfred, surgeon & apothecary, 101 Drury lane
Walker Giovanni, musical librarian & copyist, 19 Marshall street, Golden square
Walker Greaves, attorney, 11 Beaufort buildings, Strand
Walker Henry, attorney, 5 Southampton street, Bloomsbury
Walker Henry, chemist, 145 St. John street, West Smithfield
Walker Henry, chemist & druggist,35 Skinner street, Somers town
Walker Henry, grocer, &c. 33 Coleman street
Walker Henry, manufacturer to the Queen of needles, fishhooks, steel pens, hooks
& eyes, &c. 20 Maiden lane, Wood street
Walker Henry, Guilder, coachmaker, 16 White Lion street, Norton folgate
Walker Holden, solicitor, 13 Furnival's inn, Holborn
Walker Isaac, silk manufacturer, see Bartholomew & Walker
Walker James, dining rooms, 39 Great Tower street
Walker James, grocer, 92 Elizabeth terrace, Cloudesley square
Walker James, paper stainer, see Kipps & Walker
Walker William, british wine manufacturer, 5. Farringdon street
Walker James, Smith & smokejack maker, 26 Harp alley, Shoe lane
Walker William, cabinetmaker, 4 westmorland street, Marylebone
Walker James, wholesale cheesemonger, 10 Long lane, West Smithfield
Walker William, chemist & druggist, 2 White horse street, Stepney
Walker James Kinloch, upholsterer, &c. 39 & 40 Drury lane
Walker William, coach spring maker, 3 George yard, Crown street, Soho
Walker James Thomas, merchant, 14 South street, Finsbury
Walker William, corn chandler, 3 Upper area, Hungerford markt
Walker James Thomas, watch & clock maker, 148 Blackfriars road
Walker William, florist, Centre Row, Covent garden market
Walker Jane (Mrs.), pawnbroker, 41 York road, Lambeth
Walker Joel, tailor, 59 Jermyn street, St. James's
Walker John, auctioneer & appraiser, 16 Wardour street, Soho
Walker John, Q.C. barrister, 3 Old square, Lincoln's inn
Walker John, Beckfords Head
, 161 Kent street, Borough
Walker John, baker, 22 King street, Camden town
Walker John, breeches maker & tailor, a New Bond street
Walker John, butcher, 1 Britannia row, Hoxton
Walker John, butcher, 52 Kensington High street
Walker John, carpenter & builder, 38 Charlotte street, City road
Walker John, City of London
, 104 Berwick street, Soho
Walker John, chronometer maker, 40 Princes street, Leicester square
Walker John, clockmaker, 4 Red Lion street, Clerkenwell
Walker John, drug broker, 60 Gracechurch street
Walker John, drysalter, 90 Wheeler street, Spitalfields
Walker John, Eagle dining rooms, 5 Eagle terrace, City road
Walker William, foreign wine merchant, 32 & 33 Seacoal lane, Snowhills
Walker William, hist. engraver, &c. 64 Margaret street, Cavendish square
Walker William, law & general bookseller & stationer, 196 Strand
Walker William, Lion & French Horn
, 5 Pollen street, Hanover square
Walker William, livery stable keeper, 3 Coleman street
Walker William, lodging house, 7 Manchester buildings
Walker William, plumber, &c. 27 Cowcross street, West Smithfield
Walker William, surgeon, 145 St. John street, West Smithfield
Walker William, teadealer, &c. 5 Melton street, Euston square
Walker William, tobacconist, 43 Threadneedle street. City
Walker William, Walkers Hotel, 33 Dean street, Soho
Walker William, watch & clock glass manufacturer, 4 Somerset street, Aldgate
Walker William, wholesale fishmonger, 175 Goswell street
Walker William, worsted spinner, see Wood & Walker
Walker William A. grocer & cheesemonger, Little Chelsea
Walker William Falconar, solicitor, 27 Austin friars
Walker John, fruiterer, 18 Upper Ashby street, Northampton square
Walker William George, pewterer, 15 Brown's lane, Spitalfields
Walker John, grocer, 3 Andrew place, St. Andrew's road, Borough
Walker William George, tobacco pipe maker, 38 Wheeler street, Spitalfields
Walker John, iron plateworker, &c. 46 St. John square, Clerkenwell, & 1
Jerusalem passage
Walker Win. Joseph, grocer, 68 Whitehorse street, Stepney
Walker John, jeweller, 92 Whitechapel High street
Walker John, livery stables, 1 Tenterden street, Hanover square
Walker John, painter & glazier, 74 Mount street, Berkeley square
Walker John, physician, 35 Boker street, Portman square
Walker John, russia broker.75 Old Broad street & Baltic coffee house
Walker John, silversmith & jeweller, 38 Whitechapel road
Walker John, undertaker, 47 Bridge house place, Newington causeway
Walker John, woollen draper, 1 Mansell street, Goodman's fields
Walker John Burder, grocer & italian warehouse, Albion place, Hyde park
Walker John Edward, barrister, 1 Mitre court buildings, Temple
Walker John Thomas, barrister, 53 Lincoln's inn fields
Walker Jonathan, scale & machine maker, 5 Bridge street, Southwark
Walker Joseph, cabinet maker & upholsterer, 109 High Holborn
Walker Joseph, carpenter & builder, 11 Wood street, Westminster
Walker Joseph, cattle salesman, 41 West Smithfield
Walker Joseph, fishmonger, 3 Shoemakers' row, Doctors Commons
Walker Joseph, organ builder, 27 Francis street, Tottenham court road
Walker Joseph, pawnbroker, 19 Tabernacle row, Finsbury
Walker Joseph, printers' joiner, &c. 65 Hoxton Old town
Walker Joshua, livery stables, 13 Princes street, Hanover square
Walker Julia (Mrs.), baker, 150 Sloane street, Chelsea
Walker Margaret (Mrs.), Olive branch
, 1 Minerva street, Hackney
Walker Mary (Mrs.), boarding house, 17 Ely place, Holborn
Walker Mary (Mrs.), poulterer, 51 Charles street, Westminster
Walker MaryAnn (Mrs.). One Swan
, One Swan yard, Bishopsgate
Walker Nicholas,
Bear & Ragged Staff
, 67 Upper Ground street
Walker Philip, tailor, &c. 9 South crescent, Bedford square
Walker Ralph, anchorsmith, &c. Church passage, 46 Rotherhithe
Walker Rd. carpenter & undertaker, Fort o, Grange road ###
Walker Richard, grocer, 18 George street, New Kent road
Walker Rd. T. pianoforte maker, 2 Portsmouth place, Lower Kennington lane
Walker Robert, cabinet maker, 82 Margaret street, Cavendish square
Walker Robert, pawnbroker, 5 St. John street, Clerkenwell
Walker Robert B. surgeon, 27 Curzon street, Mayfair
Walker Samuel, Cock & Neptune
, 72 Parsons street, Ratcliff
Walker Samuel, fitter up of hot water apparatus for heating conservatories, &c.
16 Eccleston street east, Vauxhall road
Walker Samuel, Marquis of Granby
, 38 Grays inn lane
Walker Samuel, solicitor, see Rickards & Walker
Walker Samuel Rose, pawnbroker, see Alton & Walker
Walker Sarah (Miss), undertaker, 29 Laurence Pountney lane
Walker Sarah (Mrs.), watch glassmaker, 6 Castle street, Houndsditch
Walker Stephen, Bricklayers Arms
, 40 Strutton ground West
Walker Thomas, carpenter, 23 King street, Soho
Walker Thomas, chemist, &c. 48 Tooley street
Walker Thomas, grocer, West lane, Bermondsey
Walker Thomas, grocer, 2 Providence buildings, New Kent road
Walker Thomas, latter, 49 Crawford street & 28 Edgware road
Walker Thomas, hatter, 160c, Oxford street
Walker Thomas, hatter, 34 St. George's place, Hyde park corner
Walker Thomas, jeweller & whip mounter, 37 Buttesland street, Hoxton
Walker Thomas, lodging house, 30 Weymouth street, Portland place
Walker Thomas, pawnbroker, 9 Waterloo terrace, Commercial road east
Walker Thomas, solicitor, 3 Furnival's inn, Holborn
Walker Thomas, teadealer, 13 Clare street, Clare market
Walker Thomas, veterinary surgeon, see Maffey & Walker
Walker Thomas Larkins, architect, 2 Keppel street, Russell square
Walker William, barrister, 1 King's Bench walk, Temple
Walker William, bellhanger, 19 Harper street, New Kent road
Walker William, bookseller, 9 Leathersellers' buildings, London wall
Walker Win. Josiah, boot & shoe maker, 123 Whitechapel road, & 304 Oxford street
Walker William, P. law stationer, 11 Hemlock court, Carey street
Walker Wilsson, hosier, 105 High street, Marylebone
Walkers William Henry, working jeweller, 90 Great Titchfield street
Walkington Rt. wholesale cheesemonger, &c. 8 High street, Bloomsbury
Walkington Rt. upholsterer & cabinet maker, 45 Rathbone place, Oxford street
Walkins William, tailor, 7 Little Argyle street, Regent street
Walkinshaw & Co. (late Thomas Wyatt & Co.), east india & oil merchants,
wholesale dealers in sauces, pickles, &c. & for exportation, 102 Leadenhall
street
Walkley Stephen, grindery warehouse, 58 King street, Seven dials
Walkley William, Kings Head
, 4 James street, Buckingham gate